Replacing Gun Contact Tip; Changing Drive Roll And Wire Inlet Guide - Miller Millermatic 210 Owner's Manual

6-4. Replacing Gun Contact Tip

Tools Needed:

6-5. Changing Drive Roll and Wire Inlet Guide

Tools Needed:
5/64 in
7/16 in
2
2
1
3
1
1
2
Loosen screw. Slide tip as close to
4
drive rolls as possible without
touching. Tighten screw.
3
The drive roll consists of two differ-
ent sized grooves. The stamped
markings on the end surface of the
drive roll refers to the groove on the
opposite side of the drive roll. The
groove closest to the motor shaft is
the proper groove to thread (see
Section 4-15).
Install correct drive roll for wire size
and type.
4
Turn nut one click to secure drive
roll.
Y Turn Off power.
1 Nozzle
2 Contact Tip
Cut off welding wire at contact tip.
Remove nozzle.
Remove contact tip and install new
contact tip. Reinstall nozzle.
Ref. 800 797-C
Securing Screw
Inlet Wire Guide
Drive Roll
Drive Roll Securing Nut
Ref. 802 990-A
OM-1325 Page 25